PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Overview

The Athlon XP 2800+ is manufactured by AMD. It was released in 2009-01-01. It is based on the Barton (2001−2004) architecture. It features 1 cores and 1 threads. Max frequency: 2.25 GHz. L3 cache: 0 kB. L2 cache: 512K. Built on 130 nm process technology. Socket: A. Thermal design power (TDP): 74 Watt. Passmark benchmark score: 380 points. Launch price was $149.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. The Athlon XP 2800+ is positioned at rank #1125 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Athlon XP 2800+

Ryzen 9 7950X

MSRP: $194|Avg: $20

308629%

Core i9-10900T

MSRP: $120|Avg: $5

291624%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

211743%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

63789%

Ryzen 9 9950X

MSRP: $649|Avg: $129

50528%

Ryzen 5 8400F

MSRP: $303|Avg: $55

44202%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

25317%

Ryzen 5 2600X

MSRP: $229|Avg: $55

24986%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

22750%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

22749%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

22494%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

21887%

#13

Core i3-9100E

MSRP: $202|Avg: $30

21581%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

21494%

#15

Core i3-8300T

MSRP: $138|Avg: $25

21299%

#1125

Athlon XP 2800+

MSRP: $375|Avg: $35

100%

#1126

Pentium III 1200

MSRP: $200|Avg: $10

97%

#1127

Athlon XP 3200+

MSRP: $464|Avg: $40

95%

#1128

Pentium III 1400

MSRP: $250|Avg: $20

90%

#1129

Pentium 4 2.60

MSRP: $401|Avg: $25

90%

#1130

Pentium III 1400S

MSRP: $250|Avg: $250

90%

#1131

Athlon XP 1800+

MSRP: $252|Avg: $30

88%

#1132

Athlon XP 1900+

MSRP: $269|Avg: $20

87%

#1133

Athlon 64 FX-51

MSRP: $733|Avg: $733

83%

#1134

Athlon 64 FX-55

MSRP: $827|Avg: $50

82%

#1135

Athlon 64 FX-53

MSRP: $799|Avg: $15

80%

#1136

Athlon XP 2000+

MSRP: $339|Avg: $40

73%

#1137

Athlon 64 FX-57

MSRP: $1031|Avg: $200

69%

#1138

Athlon XP 3000+

MSRP: $588|Avg: $20

68%

#1139

Athlon XP 2100+

MSRP: $420|Avg: $30

62%

#1140

Pentium III 1266S

MSRP: $369|Avg: $20

56%

Based on actual market prices and performance synthetic scores.

FPS Benchmarks

Predicted performance for Athlon XP 2800+ across popular games. Tested paired with RTX 4090 to isolate CPU performance.

Technical Analysis

Detailed breakdown of Athlon XP 2800+ specifications and capabilities.

⚡

Processing Power

The Athlon XP 2800+ is a 1-core / 1-thread processor based on the Barton (2001−2004) architecture, manufactured on a 130 nm process node. It reaches a maximum boost clock of 2.25 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 0 kB of L3 cache, plus 512K of L2 cache and 128 kB of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 380, placing it in the Entry Level performance tier as a Legacy generation product. Geekbench 6 single-core (the most relevant metric for gaming FPS) records 250, while multi-core reaches 250.

Specification	Athlon XP 2800+
Cores / ThreadsPhysical/logical processing units	1C / 1T
Max Boost ClockPeak single-core speed under boost	2.25 GHz
ArchitectureCPU microarchitecture design	Barton (2001−2004)
Process NodeFabrication technology — smaller = more efficient	130 nm
L3 CacheShared cache — reduces memory latency for all cores	0 kB
L2 CachePer-core fast cache for frequently accessed data	512K
L1 CacheUltra-fast per-core cache	128 kB
Die SizePhysical silicon area of the processor	101 mm2
Transistor CountMore transistors = more capabilities	63 million
64-bit Support	No
Windows 11 Compatible	No
PassMark ScoreOverall multi-threaded benchmark score	380
Geekbench 6 SingleSingle-core performance — most relevant for gaming	250
Geekbench 6 MultiMulti-core parallel workload performance	250

🧠

Memory & Platform

The Athlon XP 2800+ fits into the A socket and supports PCIe 1.1 with 0 total PCIe lanes for expansion cards and storage.

Specification	Athlon XP 2800+
TypeDesktop or Laptop processor	desktop
SocketMotherboard socket required	A
PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth	PCIe 1.1
PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion	0
Max RAM SpeedMaximum officially supported memory frequency	DDR-333
Max RAM CapacityMaximum installable memory	2 GB
RAM ChannelsDual-channel doubles bandwidth vs single-channel	1
ECC SupportError-Correcting Code memory — prevents data corruption	No
Integrated GPUBuilt-in graphics processor	No
Compatible ChipsetsMotherboard chipsets that support this CPU	KT400,nForce2 Ultra 400
Max CPUs in ConfigMulti-socket support for servers	1

🔧

Advanced Features

The Athlon XP 2800+ is primarily designed for Legacy Desktop. It features an unlocked multiplier, allowing enthusiasts to overclock beyond stock frequencies for additional performance. Virtualization: None — enables running virtual machines efficiently (important for development and server workloads).

Specification	Athlon XP 2800+
Primary Use CaseIntended workload category	Legacy Desktop
OverclockingWhether CPU clock can be manually increased	✅ Unlocked
AVX-512Advanced vector instructions for AI/ML workloads	❌ Not Supported
VirtualizationHardware-assisted virtualization technology	None

🌡️

Power & Cooling

The Athlon XP 2800+ has a rated TDP (Thermal Design Power) of 74 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed. It ships with the Stock stock cooler. Recommended cooling: Air Cooler.

Specification	Athlon XP 2800+
TDPThermal Design Power — heat output under sustained workload	74 Watt
Included CoolerStock cooler bundled in the box	Stock
Recommended CoolerSuggested aftermarket cooling solution	Air Cooler

💰

Value Analysis

At an average price of $35 (MSRP: $375), the Athlon XP 2800+ delivers 11 PassMark points per dollar. It currently holds Rank #1125 in the overall cost-benefit ranking — this ranking factors in performance-per-dollar relative to all available processors. Performance ranking position: #3573 out of all indexed processors.

Specification	Athlon XP 2800+
MSRPManufacturer's Suggested Retail Price	$375
Avg Price (30d)Average market price over the last 30 days	$35
Launch PriceOriginal retail price at launch	$149
Cost-Benefit RankPosition in overall value ranking	#1125
Performance RankPosition in overall performance ranking	#3573
Release DateLaunch date	2009-01-01
Release Year	2001
DesignerArchitecture designer (e.g. Intel, AMD)	AMD